EP 1026880 A1 20000809 - Array readout system
Title (en)
Array readout system
Title (de)
Matrixlesesystem
Title (fr)
Système de lecture de réseaux
Publication
Application
Priority
US 24436399 A 19990204
Abstract (en)
Problems with source followers employed in active arrays are alleviated by employing a differential amplifier for each element of the active array. However, instead of including an entire differential amplifier within each element, part of the differential amplifier structure is shared among each sensor element connected to a particular column. For example, the differential amplifier may be a differential pair operational transconductance amplifier (OTA) which is connected using a feedback configuration. However, instead of including an OTA within each sensor element of the array, part of the OTA structure is shared among each sensor element connected to a particular column. Although gains greater than one are achievable by employing the differential amplifier with a feedback network, to avoid introducing fixed pattern noise, substantially unity gain is often preferred. Furthermore, the shared differential amplifier model of array reading may be employed for any active array readout application, e.g., including arrays that are not in themselves per se sensor arrays, where the necessary structure to form the shared differential amplifier is included within the elements of the array. <IMAGE>
IPC 1-7
IPC 8 full level
G11C 27/04 (2006.01); H04N 5/335 (2006.01)
CPC (source: EP KR US)
H04N 3/155 (2023.08 - US); H04N 25/75 (2023.01 - EP KR)
Citation (search report)
- [PX] WO 9948282 A1 19990923 - PHOTON VISION SYSTEMS LLC [US]
- [A] EP 0737003 A1 19961009 - THOMSON CSF SEMICONDUCTEURS [FR]
- [A] US 5493423 A 19960220 - HOSIER PAUL A [US]
Citation (examination)
- US 4504795 A 19850312 - GOBARA TAKU [JP], et al
- EP 0503524 A2 19920916 - TOSHIBA KK [JP], et al
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
EP 1026880 A1 20000809; JP 2000228100 A 20000815; JP 5661224 B2 20150128; KR 100635972 B1 20061020; KR 20000071319 A 20001125; US 6677995 B1 20040113
DOCDB simple family (application)
EP 00300583 A 20000126; JP 2000024328 A 20000201; KR 20000004796 A 20000201; US 24436399 A 19990204